I've been back and forth with those. First, I had an original brass one. Worked great, no issues. But it weighed a ton and seemed to darken the tone too much. Then, I bought a newer aluminum one. Better weight, better tone, but the G saddle wobbled like crazy, and the D a little bit too. I tried notching the groove that the height adjustment screw rests in a little deeper, but that didn't quite do it. I finally ended up putting the stock bridge/tailpiece back on, but with the mute completely removed (no more thumb screws), and I replaced the piece of junk philips head intonation screws with some socket cap head screws so I can actually adjust the bridge. What I'd really like is a chrome plated metal plate in the shape of the stock unit with a good old Schaller roller bridge on top.